Try contacting your ISP and asking them to help sort your problem - Tech support should at least help with checking thier servers so that you havent been locked out for some reason. Also if thier DNS are down they will tell you how long this state of affairs is expected to last.
good luck

Then if they dont satisfy you, consider changing your ISP, and tell them you are going to change unless they buck thier ideas up, unless you are tied into them with a range of other products.
Rule of thumb - wanna know a good isp - check WHICH, check thinkbroadband.com and you cant go wrong with eclipse, Keconnect as the larger ISP's have dreadful support, uptime and speed in comparison. I have been with keconnect and they have been fine for a couple of years. I have heard tesco and waitrose are good ! I have been with Pipex, BT, Demon, AOL and Orange in the past and i think they are too big to care about lil ol me, so you should compare what others have said before making your choice
